Plow.



w. w. CAMERON.

PLOW. APPLICATION FILED APR.23. I917.

nted Sept. 3, 1918.

INVENTOR Wm W0 1 loccz Come ron his Arrormy PLOW.

Specification of Letters Patent.

Patented fiept.'%, 1918.

Application filed 111111123, 1917. serial No. 1%,039.

To all? witom it me concern:

Be it known t at 1, WILLIAM WALLACE CAMERON, a citizen of the United States of America, and residing at 1.008 Rose street, in the city of La Crosse, county of La Crosse, and State of Wisconsin, have invented certain new and useful Improvements in Plows, of which the following is a true specification.

lhe invention relates to plows, and more especially to wheel-plows.

The obj ect-of the invention is to afiord improved means for holding the rear sustaining wheel in wheeled plows in fixed position to'travel behind the plow in a forward direction while straight ahead plowing is being done, and to release the holding means when turning corners, and the like; also to permit of some adjustment of the direction of travel of the wheel in order to carry the rear of the plow more or less toward or from the furrow wall to secure proper side suction to aid in keeping the plow in proper plowing position. 7

Another object of the invention is to provide a plow with the above features, and that will permit of adjustment of the direction of travel of the wheel to be made during the travel of the plow.

Another object of the invention is to provide a plow incorporating the above fea- 'tures, in which the parts shall be simple, easy of access and adjustment, and be simple and easy of construction.

- in vertical crosssection, looking from the In the drawings, Figure 1 is a sideview of the rear end of a wheeled plow embodying the invention; Fig. 2 is-a perspective view of the parts shown in the left hand side ofFig. 1; Fig. 3 is a detail of the parts at the top of the shank or axle for the rear wheel, taken from the plowed ground side of the plow, and showing the wheel locked against turning; Fig. 4 is the same view, showing the parts in unlocked position; Fig. 5 is a detail of the same parts, partly front; Fig. 6 is a detail, partly in section, of the parts as shown in Fig. 3; Fig. 7 is a horizontal cross section taken on the line a1a of Fig. 3.

in the drawings 1 indicates a plow bottom, 2 a plow beam therefor, 3 a bracket or rearward extension for the beam, 1 a vertical socket secured to said bracket, 5 an axle having a vertical shank portion passing rotatably through the socket, and havmg a squared upper end 5; 6 is a rear sustaining wheel rotatably mounted on the lower outer end of the axle; 7, 8, 9, 10, '11, are parts for lifting the rear end of the plow carrying structure with relation to the wheel, connecting to a shifting means at the front end of the plow, not shown herein. 12 is'a thimhle having a squared inner opening to fit over the squared upper end 5 of the shank. The extreme upper end of the shank is threaded and receives the washer 13 and nut 14 by means of whichthe thimble 12 is held securely and rigidly upon the squared end 5 of the shank. Extending laterally from the base of the thimble is an annular flange 12 and on the lower face' of the collar and flange are laterally extending diametrically opposed lugs or ribs 12 and 12. This thimble has a laterally extending arm 12 having the hole 12 therein.

15 indicates a collar loosely mounted on the shank below the thimble 12 and having a pair of cars 15 and 15 extending fore and aft of the shank, and pierced with holes 15 and 15'; and a laterally extending arm 15 having holes 15? and 15 therein In normal position the hole 15 re 'sters with the hole 12. In the upper ace, of this collar are diametrically opposed grooves 15 and 15, adapted to register and lock with the lugs 12 and 12, to lock the shank against turning;

16 indicates acollar loosely fitting'about the thimble 12 and upon the upper face of the flange 12, having foreand aft extending ears 16 and 16", pierced with the holes 16 and 16 that normally register with the holes 15 and 15 of the collar 15.

Passing through the holes 15 and 16 and 15 and 16 respectively, are headed bolts 17 and 18, threaded at their lower ends to re ceive the nuts 18 below the collar'15. 19 are springs interposed between the bolt heads and the upper face of the ears of the collar 16, the. tension of which is regulated by the nuts 18 as required.

Upon the plow carrying structure, as upon the part 3, is an upright bracket 22, secured by a nut 22. A ri ht-angled support 21-is at its forward en pivotally connected to the bracket 22. The rear, angled, portion 21' 01521 is pierced with a hole, as shown in Fig. 2, through which passes the from lateral turning,

forward end of a rod 20, held in adjusted relations to the su ort 21 by its threads and the nuts 20, e rear end of the rod. 20 is pivotally connected with the arm 15 by the hook end 20 passing through the hole 15 of the collar 15.

The collar 15 is held in a fixed lateral ing relation with the grooves 15 and 15 by the upward tension of the springs '19 exerted upon the face of the ears 16 and 16 and the heads of the bolts, whereby the nuts of the bolts draw the collar 15 upwardly and keep the lugs and grooves in look, thereby preventing the shank, and with it the wheel, so long as the plow 1s traveling in a stralght forward direction. The tension of the springs may be made sufiicient to prevent the unlocking of the lugs and grooves by the ordinary incidental swinging of the plow. But if the plow 1s turned as in short angles and corners, the lateral pressure of the rounded surfaces of the lugs and grooves will be sutlicient to overcome the tension of the springs, lower the collar 15, permit the lugs to emerge from the grooves, and automatically permit the lugs, thimble and shank, and with them the wheel ,6, to turn laterally with relation to the collar 15 and the plow carrying structure.

As soon as the plow resumes straight forward travel, the trend of the wheel will automatically swing the wheel and shank back into fore and aft relation, the lugs and grooves will again coincide, and the springs will draw them again into yieldable looking relation.

The thread and nut adjustment at the forward end of the rod 20 permits of adjusting the collar 15 laterally, thereby throwing the grooves-into true longitudinal alinement with the plow, or turning them more or less at an angle therewith in either direction, thereby changing the direction of travel of the wheel as may be desired to hold the rear of the plow 1 to or from the land and keep it in proper position to cut sufiiciently into the land and make the plow run true. .It will be observed that by placing the controlling parts upon the top of the shank and the rod 20 above the plow, this shifting of the direction of the travel of the wheel may easily be made while the plow is moving and without the least danger of losing control of the parts; and also that the tension of the springs 19 may be similarly adjusted while the plow is in motion. The pivotal connection of the adjusting rod 20 with the plow carrying structure permits to the controllingparts to work freely whether narrate the plow is in raised or in lowered position.

If it is desired to hold the plow rigidly against unlocking and the wheel from turning with relation to the plow carrying structure when the plow is turning, this can be done by inserting a pin through the registered holes'12 and 15, whereby the shank 5 wilisbe rigidly locked with the stationary arm It is manifest that departures from the precise embodiment of the invention shown and described in the drawings and specification herein might be made without departing from the spirit of the invention.

Having shown and described my invenmeans for shifting the direction of travel of the wheel during the travel of the plow and holding it in shifted position, the shank turning independently of the locking means I when unlocked.

2. In a plow, the combination of a plow carrying structure, with a rear sustaining wheel, -a connection between the wheel and the structure comprising an axle having a vertical rotatable shank, means for looking the shank against rotation, and a connection between the locking means and the structure for shifting the direction of travel of the wheel during the progress of the plow and holding it in shifted position, the shank turning independently of the locking means when unlocked.

3. In a plow, the combination of a plow carrying structure with a rear sustaining wheel, a connection between the wheel and the structure comprising an axle having a vertical rotatable shank, means for fixedly controlling the direction of travel of the wheel comprising a collar loosely mounted on the shank, an adjustable connection between the collar and the carrying structure, and means for locking the collar to the shank, the connection retaining control of the collar during the adjusting process.

4. In a plow, the combination of a plow carrying structure, with a rear sustaining newness on the shank, an arm on the collar, an adjustable connection between the arm and the carrying structure, and means for yield-.

10 ably locking the collar to the shank comprising a. spring.

. carrying structure, with a rearsustaining wheel, a connection between the wheel and l the structure comprising an axle having a vertical rotatable shank, means for controlling the direction of travel of the wheel comprising a collar loosely mounted on the shank, an adjustable connection between cache collar and the carrying structure, and

means for automatically unlocking the col 7 look with the lug, a pair of opposed ears on lar from the shank.

7. In a plow, the combination of a plow carrying structure, .with a rear carrying a5 wheel, a connection between the wheel and thestructure comprising an axle having a vertical rotatable shank, means for controlling the direction of travel of the wheel comprising a collar loosely mounted on the 59 shank, an arm on the collar, an adjustable connection between the arm and the structure comprising a rod having one end.

pivoted to the arm and the other end adjustably connected to a fixed point on the.

structure, and means for yieldably locking the collar to the shank.

,8. In a plow, the combination of a plow carrying structure, with a rear sustaining wheel, a connection between the wheel and ac the structure comprising an axle having a vertical rotatable shank, means for controlling the direction of travel of the wheel comprising a collar loosely mounted on theshank, an arm on the collar, a fixed support 5 on the structure, a rod having one end pivotally'attached to the arm and the other end adjustably connected to the support by a screw and nuts, and means for yieldably locking the collar to the shank.

W 9. In a plow, the combination of a plow carrying structure, with a rear carrying wheel, a connection between the wheel an the structure comprising an axle having a vertical rotatable shank, means for control- 55 ling the direction of travel of the wheel comprising a collar loosely mounted on the shank, an arm "on the collar, 2. support pivoted on the structure for vertical movement, a rod having one end pivotally attached to the arm and the other end adjustably connected to the] support by a thread and nuts on the'rod, and means for yieldingly locking. the collar to the shank.

10. In a. plow, the combination of a plow 1 as carrying structure, with a rear sustaining wheel, a connection between the wheel and the structure comprising an axle having a I vertical rotatable, shank, means for yield ingly locking the shank against rotation comprising a lug rigid on the shank, a collar loosely mounted on the shank and having a groove adapted to lock with the lug, a spring for holding the lug and the groove in locked relation, and means for holding the collar laterally rigid withrespect to the re l carrying structure. 6. In a plow, the combmatlon of a plow 11. In a plow, the combination of a plow fcarrying structure with. a rear carrym wheel,-a connection between the wheel an the structure comprising an axle having'a so vertical rotatable shank, means for yield- .ingly holding the shank against rotation comprising a lug on the shank, a collar loosely mounted on the shank on one side of the lug and having a groove adapted to 85 the collar having openings therein, a collar loosely mounted on the shank on the opposite side of the lug and having ears coincidingwith the ears of the first named colcc 'lar, and holes therein, bolts through the holes having adjusting nuts, springs between the heads of the bolts and one of the collars whereby the lug and the groove may be yieldingly locked with each other, and a5 -means for holding one of the collars rigid the structure comprising an axle having a vertical rotatable shank, means for yieldably holding the shank against rotation comprising athimble rigidly secured to the top of the shank and having lugs on its 11% lower face, a collar loosely -mounted on the shank below the thimble and having grooves adapted to engage the lugs, laterally opposed ears on the collar having holes there n, a collar loosely mounted on the thinible no above the lugs, ears thereon above the ears of the lower collar, having openings through the ears, bolts passing through oth pansof openings, adjusting nuts on the bolts springs between the heads of the bolts and 1111s the ears of the upper collar, and a connection for holding one of the collars in fixed lateral relation with the structure.

13. In a plow, the combination ota plow carrying structure, with a rear carrying we wheel, a connection between the wheel and the structure comprising an axle having a vertical rotatable shank, means for holding the shank against rotation comprising a collar loosely mounted on the shank and 11% having an arm, a connection between the arm and the .structure for holding the collar laterally rigid on the structure, a yieldable locking connection between the collar and the shank, and means for holding the shank 1w laterally rigid with'the structure comprisarm and the structure for holding the collar ing a locking connection between the shank and the arm. i

14. In a plow, the combination of a plow carrying structure with a rear carrying wheel, a connection between-the wheel and the structure comprising an axle havin a vertical rotatable shank, means for hold ng the shank against rotation comprising a collar loosely mounted on the shank and having an arm, a connection between the laterally rigid with the structure, a yieldable locking connection between the collar and the shank, and means for holding the shank laterally immovably rigid with the structure comprising anarm rigid on the mounted on the shank, means for hold-' ing the collar laterally rigid, coacting locking means on the collar and on the lug,

' and means for vertically shifting the collar to bring the locking means into locking re lation.

16. In a plow, the combination of a plow carrying structure, with a rear carrying wheel, a connection between the wheel andthe structure comprising an axle having a vertical rotatable shank, a lug on the shank, a collar loosely mounted and vertically slidable on the'shank, means for holding the collar laterally rigid, interlocking means on the collar and on the shank respectively, and means for vertically shifting the collar to bring the interlocking means into locking relation whereby the shank will be yieldingly held against rotation.

' 17. In a plow, the combination of a plow carrying structure, with a rear sustaining wheel, aconnection between the wheel and the structure comprising an axle having a vertical rotatable shank, and means for fixedly controlling the direction of travel' of the wheel comprising an adjustable conthe connection retaining rigid control of the shank during the adjusting process.

18. In a plow, the combination of a plow carrying structure, with a rear sustaining wheel, a connection between the wheel and the structure comprising an axle have ing a vertical rotatable shank, and means for fixedly controlling the direction of travel of the wheel comprising an adjustable connection between the shank and the structure, the connection retaining control of the shank ,during the adjusting process and permitting vertical shift of the shank with respect to the structure during all of processes. l

WILLIAM WALLACE CAMERON;

' nection between the shank and the structure, I

the plowing 

